BBW Witch Inflates Tits Until They Burst

Description: You find out a rival witch in the coven has been experimenting with inflation magic that could make her the next high priestess so sneakily tricked her and tied her to the throne in front of you. she's been experimenting with inflation magic on other witches and even herself, boasting that she could be biggest of all. well you've been secretly training as well and found a forbidden spell that's supposed to be the strongest ever made - and well, why not try it out on this inflatable witch bitch and see how big her body can really get! you read off the spell words from the book and it slowly takes effect, despite her pleas for you to stop. her breasts push out, her tummy starts to puff up, ever her arms, hips, legs, and face start to fill up with air. you're loving her blowing up like a balloon and read the next line in the spell, she starts to get bigger and faster. you start to feel a little woozy in your chest area but it's probably just the strain of the new magic. you read another line, she keeps pumping up bigger and begs you to stop already, when you notice somehow your tits are now starting to grow. you always wanted bigger tits and why not get them while you pump this bitch up until she explodes! you read another line, she gets even huger while your breasts are starting to catch up in size - making you worry a bit about what is going on with the spell. another line, she's now massive, and your tits have blown up really big, now you're really worried you might pop before she does but you keep teasing her on how huge and inflated she is. you read the last line, she blows up into blimp sized ready to burst with cheeks puffed out and can't speak but looks like her inflation has stopped, while your tits are now so huge you feel you could explode if you got any bigger. you recheck the spell as you know you did it right when you find a small footnote that says "spell requires a sacrifice" wait, does that mean you!? you desperately try to find an anti-spell to stop your inflation but it's hard to read over your massive tits. you finally find the anti-spell but you read it over your blimp tits as you beg the magic to stop pumping you up. then your cheeks puff out as the magic has no room to go, you try to hold your inflating breasts in, all while your rival laughs looking on even though she could burst at any second too. your tits then grow past their limit as you try to hold yourself together and then pop! script: nothing firm, just love you teasing a helpless inflatable girl about getting so full of air she explodes and then turning desperate when you try to stop it from happening to you.